Questions tagged [hdmi]

HDMI stands for High Definition Multimedia Interface. Along with the Composite RCA, HDMI is one of the devices' two video outputs. It provides high quality digital video.

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15 views

simultaneous audio playback is not working

i have raspberrypi4, i flashed webos ose edition in that. i have connected 2 hdmi displays and play using aplay in hdmi1, hdmi2 and lineout(headphones), I am getting error from aplay. #cat /proc/...
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37 views

Use HDMI output on headless system running on RPi4

I am using Yocto and meta-raspberrypi to build a Linux image running on my RPi4. I would like to send a video to one of the HDMI outputs, but without running a graphical environment (I don't need a ...
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Display working on TV but with incorrect detection

My raspberry's display is working on TV but without detecting or loading drivers so the resolution is just 1360x768. I have tried xrandr but says Can't open display. Also tried cec-client but says ...
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87 views

RetroPie on Pi 4B won't display on LG smart tv

I have a Raspberry Pi 4B and have installed RetroPie on it (by flashing the image provided on the RetroPie site). In the beginning, connecting to my LG smart tv (43UM7600PLB) worked fine. After a ...
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RasPi4 does 2nd init of HDMI, thus ignoring config.txt read done at boot

RasPi 4B When I edit config.txt, trying to force a certain resolution, RasPi always comes up with the monitors preferred resolution. After a lot of trying, including a completely new fresh OS install, ...
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Pi 4B ignores HDMI mode 4 - 640x480, boots instead at 1024x768

I edited /boot/config.txt to use hdmi_group=2 and hdmi_mode=4; one HDMI monitor is connected to the first connector. It starts at 1024x768 instead. Only when I explicitly run xrandr --output HDMI-1 --...
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23 views

Raspberry Pi 3 USB to HDMI converter

I'm wondering if I could set up a Rasp Pi 3 up as a converter for a USB webcam to output as an HDMI source. Preferably once done, the program will run automatically once the Pi is turned on. Which OS ...
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Extending PiCam with CSI to HDMI issue

(Links to Amazon are not affiliated, or endorsed, but strictly to show the devices used) I wanted to extend my PiCam distance from my RPI3B, and purchased a CSI-to-HDMI module ( https://www.amazon.com/...
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Omxplayer not always starting with rc.local

I have trouble with my Raspberry Pi 4B configuration. I prepared RPI to work with TV - it turns on the TV and switches active source to HDMI1 with cec-client. After turning on the TV it should start ...
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Read RFID tag and display chart via HDMI

I'm a beginner in Raspberry Pi developing, I'm more familiar with embedded programming. But now, I have got a project, where I definitely need the performance and GUI of an Raspberry Pi :) Overview I'...
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Connect a microphone on monitor [closed]

I want to use my raspberry pi 4 as a desktop computer so I have it hooked up with a monitor. The monitor has a microphone input as well as a built-in speaker but I'm not able to get the sound through ...
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Connect small but zoom-able touch-sensitive display to Pi 4 HDMI output for setup and focus?

I have a RPi 4 + HQ PiCamera connected to a computer several meters away via ethernet. I can see live feed from the camera on the ethernet-connected PC in several ways: Configure as a webcam by ...
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Raspbian Lite not playing vlc audio through HDMI

I have an RPi 3 running Raspbian Lite with vlc installed, I'm trying to get this setup for a TV, to play some branding from a directory on loop. Currently there's an issue with playing the audio from ...
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Raspberry Pi 4B - UBUNTU 21.04 - DSI + HDMI

SPECS: Raspberry Pi 4 Model B, Ubuntu hirsute hippo (21.04) 64 bit, 4.3 inch Capacitive Touch Display for Raspberry Pi, DSI Interface, 800×480 Initially I used HDMI to do setup with raspberry pi 4 ...
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No hdmi sound option (Rpi 4 ubuntu 21.04)

When I go to settings -> sound I can change the sound output to the bluetooth headset or the built-in audio jack like normal. But the option "HDMI" simply does not appear in the options ...
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S.O.S Monitor Says No signal and HDMI inactive to Raspberry Pi4B

I connected mi PI4B to the monitor with HDMI-MicroHDMI adapter, and when I power de PI device, the monitor says "HDMI Inactive" and no signal. The screen was in black. The Red led of the PI ...
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88 views

Dual-Window RPi: HDMI + TFT

Like others, I'd like to set up my RPi (3/B+) with two independent screens: an HDMI and a 3.5" TFT hat (mine happens to be from Adafruit). I can get to the point where the HDMI monitor works ...
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164 views

Raspberry Pi Audio - Can not get 5.1 Surround Sound Audio to output to HDMI

I have an applications where I need to do the following on a Raspberry Pi (3, 4, and/or Zero) running the latest version of Raspberry Pi OS: Play an AC3 file with 5.1 audio over HDMI. Play an MP3 or ...
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Set HDMI for 7'' display fails on Pi4

Trying to run Waveshare 7'' display on my Pi4. According to Waveshare manual I should set params manually in config.txt: [all] max_usb_current=1 hdmi_group=2 hdmi_mode=87 hdmi_cvt 1024 600 60 6 0 0 0 ...
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27 views

Television is blinking while connecting to Raspberry Pi

I have changed config in the following way: overscan_left=16 overscan_right=16 overscan_top=16 overscan_bottom=16 framebuffer_width=800 framebuffer_height=600 config_hdmi_boost=6 And I am in text ...
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Is it possible to correct the HDMI projection angle for Raspberry Pi?

I'm making a chromium kiosk mode web application running on my Pi sync on 2 screen. One is the 7 inches touch screen. The second is connected to a projector in HDMI and projected on a curved wall (the ...
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33 views

HDMI output does not fill full 800x480 TFT display

I have a Raspberry Pi running Raspberry Pi OS Lite (CLI only). The Pi is attached over HDMI, via an adapter, to a 7.0 inch 800x480 TFT display from Adafruit. When I boot up the CLI, the console only ...
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47 views

Attempting to control a Raspberry Pi running Kodi with a LG RF remote

I'm running a Kodi application within a Raspberry Pi4 connected to an HDMI port on an LG TV with an RF remote. The problem is that I'm not able to control the Kodi application using the LG's RF ...
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91 views

How to detect dpi automaticly and set zoom?

I have an Raspberry Pi 4b with Rasbian OS. I want to connect this device to an Full-HD or 4K (Retina) display (not at the same time). This works, but there is no automaticly scaling on 4k like on ...
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32 views

Wakeup HDMI display from standby without interrupting blank screen

I've a HDMI display attached to a RasperryPi 4. After few minutes, first a blank screen is activated, then the display goes into standby. I want to wakeup the display from standby (by a sensor via ...
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67 views

I am trying to flip/mirror an hdmi signal and would like to use a Pi to do it

I need to get an hdmi signal to show a mirror image(not duplicate) that i would like to put inline of a video feed. So it would be: SOURCE—>outputCABLE-->PI—->CABLE—>TO MONITOR. Is it a ...
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136 views

Pi4: Allow boot with and without HDMI

I need to boot my Pi4 to boot with AND without a HDMI cable plugged in. In order to boot without a monitor connected to the Pi, I've added hdmi_force_hotplug=1 To the config.txt. Now the Pi boots ...
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12 views

fbi freezes system and other apps

I'm trying to display an image to HDMI output with fbi. I have a 3.5-inch touchscreen and a video projector as output. fbi works fine but the problem is that fbi freezes the system while shows an ...
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26 views

RPi4 jack only works when HDMI connected

I have a RPi4 with an USB microphone (I think it's unrelated to the issue) and jack speakers powered via USB. This set up worked flawlessly in a RPi3B, by the way. (Raspberry Pi OS) The problem is ...
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117 views

usb3 to hdmi on linux - why can my chromebox do it, but my ras pi can't?

i should mention I'm a linux newb. I only use dumb redhat servers at work (barely) but hate windows so much i've got a chromebox and ras pi 4 to try to free myself. and my apps. i've found that ...
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44 views

How to automatically switch between the official 7" DPI display and a HDMI TV on Raspberry Pi 3?

I use a RPi3 with the Recalbox OS for some retrogaming. And I want to use the official 7" DPI monitor when it's portable, and the HDMI when I connect it to the TV. I tried plugging the HDMI cable ...
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(Pi 3B+) RCA works but HDMI crashes after “colored splash screen”

How are you? I recently bought a used raspberry 3 b+ (my first one), at first I couldn´t use the HDMI port because it only gave me the "colored splash screen" and just after that "no ...
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44 views

Use RPi 0w as HDMI/DVI capture device using USB OTG

In a new project, I would like to setup my Raspberry Pi Zero W as a USB display adaptor or display monitor using USB OTG. First to clarify, I do not want to capture video from a camera or game console....
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How to play on RPi4 two Full HD 1080p videos with audio outputting to two HDMIs separately?

Let's consider two mp4 containers media (h264/1080p video + aac audio) mountains.mp4 and forest.mp4. When omxplayer started for first video: $ omxplayer --no-keys --loop --display 2 ./mountains.mp4 ...
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RPi's screen starts doing strange things when running a software

I would like to know if someone could help me with this, when I starts a software like Blender or Sonic Pi my screen begins to freeze and by continuing refreshing the screen I finish with a white ...
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Connecting my Raspberry Pi 0 W

I was wondering which type of HDMI I should use to connect my Raspberry pi to my monitor, it says HDMI on the side but I dont appear to have any cables of the type, I would like to buy the cable but I ...
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Raspberry pi 2B is stuck on rainbow screen and the 7" official screen is white

My Raspberry pi 2B works perfectly fine when it is connected to my TV via HDMI. But when I connect it to the touchscreen at the same time, the touchscreen is just a white screen and on the HDMI, it is ...
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My scren blinks every 10 seconds (RPI 4)

I have a RPI 4B connected to a SAMSUNG SyncMaster 743NX with a HDMI to VGA adaptor and then a VGA to VGA cable (also the mini HDMI to HDMI adaptor for RPI 4). My screen goes black every 10 seconds and ...
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How to set HDMI Port 1 to be used by default on Pi4?

During some experiments it looks like my HDMI port 0 broke down. I still can SSH to it. tvservice -M <display on port 0> Does not show any activity on port 0 when I plug the HDMI cable in and ...
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29 views

TV Hat disables HDMI on Raspberry Pi 4

I got a brand new Raspberry Pi 4 and a TV uHat. When the HAT is not attached to the Pi, I get output from HDMI0. When the HAT IS attached, however, I get no output from HDMI0. My TV just says "...
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33 views

HDMI no signal when i run game

Hi I have a raspberry 3 system with recallbox software. the systems works and initiates. when i run a game the HDMI says no signal. this happened when i changed tv. i tried 3 different tvs and 4 ...
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Raspberry Pi 4, audio on hdmi 0, video on hdmi 1

Presently I am trying to setup a Raspberry Pi 4 to send its 7.1 uncompressed audio to an older home theater receiver for decoding via the HDMI 0 output and a 4k video output from the HDMI 1 output to ...
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51 views

Turn HDMI display off while keeping audio on

I am currently wrestling with a configuration headache involving my RPi4, Kodi and an audio receiver (and a TV that doesn't support CEC standby)… Even after installing an HDMI splitter to separate ...
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1answer
37 views

Raspberry PI 0 W

I have embedded Raspbian OS in SD card and I have put it in the Raspberry PI 0 W using Noobs method, But if i connect it to lap or some HDMI display via HDMI cable, I am not getting the display ...
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172 views

Why can't you connect Raspberry Pi to a Laptop via HDMI

I have a Raspberry Pi 3b+. When I hook it up to my TV, which has HDMI input, it automatically boots up the pi and show the raspbian window. Although, when I connect it to my Laptop via HDMI there is ...
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269 views

HDMI streaming on Raspberry Pi 4B with TC358743

I'm looking to stream an HDMI signal wirelessly between two Pis, using a TC358743 on the camera port of the input Pi and playing video from the HDMI port of the output Pi. I'm quite new to Raspberry ...
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1answer
85 views

Control IR Port With GPIO

I'm working on a project that needs the ability to control an HDMI switch programmatically. There are going to be a lot of these boxes so price of the components used is very important. I've ...
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245 views

No HDMI audio when logged in as a new user

Sound over HDMI works fine when I login as the default user pi. I created a new user named for example user1 If I login as this user, no sound plays through hdmi. I then added this user to most groups ...
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108 views

Alternative ways of controlling TV standby when libCEC is not working

I am running into the problem encountered by a few people here: my LG TVs appear to use an incompatible CEC standard that does not respond to on 0 or standby 0… Like the previous poster, I have ...
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33 views

Raspberry does not respect Framebuffer resolution after latest update (dez 2020) and changes mid-boot

I have the following on my /boot/config.txt: framebuffer_width=1280 framebuffer_height=720 Which worked for many years on my dozens Raspberry Pis until I updated Raspbian 10.6 this week. Now, it ...

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